رویان

بزرگترین مجله کشاورزی اینترنتی

رویان

بزرگترین مجله کشاورزی اینترنتی

عناوین یادداشت‌ها

  • Xylosandrus crassiusculus پنج‌شنبه 20 دی 1386 19:11
    An ambrosia beetle - Xylosandrus crassiusculus Motschulsky Eggs & larvae Adult Frass toothpick Many frass toothpicks Damage An ambrosia beetle This ambrosia beetle was first detected in the continental United States near Charleston, South Carolina (T. Hofaker, pers. comm., 2004). To date, most damage has been to...
  • Xyleborus similis پنج‌شنبه 20 دی 1386 19:11
    Shot-hole borer - Xyleborus similis Ferrari Xyleborus similis An exotic tree-feeding insect, Xyleborus similis , has been found in Memorial Park, Houston (T. Hofaker, pers. comm., 2002). Traps for this insect were placed as part of the joint APHIS-Forest Service Rapid Detection of Exotic Scolytidae project. This...
  • Xyleborus glabratus پنج‌شنبه 20 دی 1386 19:10
    An ambrosia beetle - Xyleborus glabratus Eichhoff Damage I Damage II Gallery I Gallery II An ambrosia beetle and associated fungus in the Ophiostoma genus Mortality of redbay trees ( Persea borbonia ) has been reported in coastal areas of Georgia and South Carolina (J. Johnson, Georgia Forestry Commission, pers. comm....
  • Tomicus piniperda پنج‌شنبه 20 دی 1386 19:10
    Common (or larger) pine shoot beetle - Tomicus piniperda L. Holes Twig hole Adult Galleries I Galleries II Shoot tip damage Distribution map Common (or larger) pine shoot beetle The common (or larger) pine shoot beetle was first discovered in July 1992, near Cleveland, Ohio (Kucera, 1992). It entered the country on...
  • Tetropium fuscum پنج‌شنبه 20 دی 1386 19:09
    Brown Longhorned Spruce Beetle - Tetropium fuscum Fabricius Adult Brown longhorned spruce beetle An infestation of the brown longhorned spruce beetle had been found in and around a Halifax, Nova Scotia park, where it was killing red and white spruce ( Picea rubens and P. glauca ; Smith & Hurley, 2000). The pest is...
  • Amylostereum complex پنج‌شنبه 20 دی 1386 19:09
    Woodwasp- Amylostereum complex - Sirex noctilio F. Pupae Adult female I Adult female II Map Damaging holes Gallery I Gallery II Dead trees Woodwasp- Amylostereum complex The woodwasp, Sirex noctilio , and the associated pathogenic fungus, Amylostereum areolatum , are native to Eurasia and North Africa (USDA APHIS...
  • Scolytus schevyrewi پنج‌شنبه 20 دی 1386 19:08
    Banded elm bark beetle - Scolytus schevyrewi Semenov Adult from side Adult from top Banded elm bark beetle The banded elm bark beetle Scolytus schevyrewi Semenov is a bark beetle native to Asia, ranging from the Caspian Sea (Kazakhstan, Turkmenistan, and Uzbekistan) to Korea (Anonymous, 2004). The "chevy" beetle was...
  • Scolytus intricatus پنج‌شنبه 20 دی 1386 19:08
    European Oak Bark Beetle - Scolytus intricatus Ratzeburg Gallery European Oak Bark Beetle Introduction of European oak bark beetle into North America would probably have its greatest impact on the eastern hardwood-dominated forests. In Europe, this bark beetle feeds on branches and secondary shoots of various hardwood...
  • Quadrastichus erythrinae پنج‌شنبه 20 دی 1386 19:07
    Erythrina gall wasp - Quadrastichus erythrinae Kim Adult gall wasps Erythrina damage Distribution map Maui survey map Wiliwili flowers Erythrina gall wasp Like other dryland plants in Hawai'i, the wiliwili tree ( Erythrina sandwicensis ) faces numerous threats, including a non-native seed weevil, Specularius...
  • Paratachardina lobata پنج‌شنبه 20 دی 1386 19:07
    Lobate Lac Scale - Paratachardina lobata subsp. lobata Chamberlin Two mature females Many scales Dead Myrica cerifera Causing sooty mold Lobate lac scale Lobate lac scale is a scale insect, native to India and Sri Lanka, that was identified in the Bahamas in 1992. In the U.S., the scale was first identified in Davie,...
  • Orthotomicus erosus پنج‌شنبه 20 دی 1386 19:06
    Mediterranean Pine Engraver Beetle - Orthotomicus erosus Wollaston Gallery Gallery with larvae Dead tree Mediterranean Pine Engraver Beetle In summer 2004 it was discovered that the Mediterranean pine engraver beetle had become established in the southern Central Valley of California. The first detections occurred at...
  • Lymantria monacha پنج‌شنبه 20 دی 1386 19:06
    Eurasian Nun Moth - Lymantria monacha L. Eggs Hatchlings I Hatchlings II Young larva Larva Feeding larva Pupa Portrait of male Male, dark morph Male, grey morph Female I Female II Dark male, pale female Heavy defoliation Complete defoliation I Complete defoliation II Eurasian nun moth The Eurasian nun moth is in the...
  • Lymantria dispar پنج‌شنبه 20 دی 1386 19:05
    European Gypsy Moth - Lymantria dispar L. Dead trees I Dead trees II Dead trees III Dead trees IV Larvae I Larvae II Larvae III Pupae: Asian/left, Euro/right Female laying eggs Females en masse Female (top), male (bottom) Male European Gypsy Moth The European gypsy moth has been one of the most destructive exotic...
  • Ips typographus پنج‌شنبه 20 دی 1386 19:05
    European spruce beetle - Ips typographus L. Egg Larvae Larva portrait Adult I Adult II Gallery I Gallery II Gallery and larvae Holes Blue stain Damaged trunks Damaged forest European spruce beetle The European spruce beetle is found across Europe and Asia (USDA APHIS & Forest Service, 2000), where it causes...
  • Hylurgus ligniperda پنج‌شنبه 20 دی 1386 19:04
    Red-haired (=Golden-haired) Pine Bark Beetle - Hylurgus ligniperda Fabricius Larvae, pupae, adult Adult Adults under bark Egg gallery Seedling damage Red-haired (=Golden-haired) pine bark beetle The red-haired pine bark beetle is native to Mediterranean areas and Africa but has been introduced to South America, Japan,...
  • Elatobium abietinum پنج‌شنبه 20 دی 1386 19:04
    Spruce aphid - Elatobium abietinum Walker Aphid Damaged growth Damaged tree Damaged trees Spruce Aphid This European insect was first introduced to the Pacific Coast of North America. By 1927, it was established throughout the coastal Sitka spruce ( Picea sitchensis (Bong.) Carr.) forests of the region (Lynch, 2004)....
  • Dryocosmus kuriphilus پنج‌شنبه 20 دی 1386 19:03
    Chestnut Gall Wasp - Dryocosmus kuriphilus Yasumatsu Chestnut gall wasp Adults Larvae Galls Chestnut Gall Wasp The American chestnut ( Castanea dentata ), Allegheny and Ozark chinkapins (both Castanea pumila ) have been attacked in succession by three different exotic pests: chestnut gall wasp, phytophthora root rot,...
  • Coleophora laricella پنج‌شنبه 20 دی 1386 19:03
    Larch Casebearer - Coleophora laricella Huebner Feeding larvae Larvae and brown cases Overwintering larvae Needle damage Adelgid (crawler) Tree damage Dead trees Larch casebearer Larch casebearer is a moth that feeds on larch species ( Larix ) and was probably introduced in Massachusetts on nursery stock from Europe...
  • Chilecomadia valdiviana پنج‌شنبه 20 دی 1386 19:02
    Chilean carpenter worm - Chilecomadia valdiviana Phillippi Larva Chilean carpenter worm The Chilean carpenter worm is found in South America, especially in central to southern Chile and Argentina (USDA APHIS & Forest Service, 2001). The species feeds on various hardwood timber species and fruit trees. In 1992 the...
  • Cactoblastis cactorum پنج‌شنبه 20 دی 1386 19:02
    Cactus moth - Cactoblastis cactorum Bergroth Eggstick Young caterpillar Feasting caterpillars Scale bar head shot Many caterpillars Cocoon Pupa revealed Adult Cactus moth In 1989, the cactus moth, Cactoblastis cactorum , was collected on Big Pine Key in Florida. A biological control agent typically released for...
  • Aulacaspis yasumatsui پنج‌شنبه 20 دی 1386 19:01
    Aulacaspis yasumatsui Takagi Damage in Guam Cycad mortality More Guam damage Severe infestation Severe infestation II Cycad aulacaspis scale (sago palm scale, asian cycad scale) The cycad aulacaspis scale was first detected on Guam in late 2003 on cycads planted near hotels. The scale is native to Thailand and...
  • Aradus cinnamomeus پنج‌شنبه 20 دی 1386 19:01
    Aradus cinnamomeus Panzer Pine Flat Bug The pine flat bug is a palearctic region pest of coniferous and hardwood trees. The pest is distributed from the United Kingdom to Siberia and feeds on the tissue of seedlings and young trees and can cause serious damage in nurseries, Christmas tree plantations, and seedlings or...
  • Anoplophora glabripennis پنج‌شنبه 20 دی 1386 19:00
    Anoplophora glabripennis Motschulsky Larva Nightmare fodder Adult I Adult II Life stages Damage Tree holes Risk map Pre-removal During removal Post-removal Asian longhorned beetle The Asian longhorned beetle has repeatedly entered North America as a hitchhiker in wood packaging (USDA APHIS & Forest Service, 2000),...
  • Anoplophora chinensis پنج‌شنبه 20 دی 1386 19:00
    Anoplophora chinensis (Forster) Adult I Adult II Exit hole Bonsai wi/exit hole Intercepted shipments Citrus Longhorned Beetle This relative of the Asian longhorned beetle attacks and kills a wide range of hardwood species, including maple ( Acer ), oak ( Quercus ), willow ( Salix ), and poplar ( Populus ) in addition...
  • Agrilus planipennis پنج‌شنبه 20 دی 1386 18:59
    Agrilus planipennis Fairmaire Risk map Presence map Epicormic sprouts (signs of damage) Infested tree removal Eggs Larvae The pest Adult Damage D-shaped exit hole Emerald ash borer In the summer of 2002, scientists realized that widespread damage to ash ( Fraxinus ) in southern Michigan was caused by an introduced...
  • Adelges tsugae پنج‌شنبه 20 دی 1386 18:59
    Adelges tsugae Annand An infested branchlet Closer view I Closer view II Extremely close view Thinning crown Dead trees I Dead trees II Infestation map Hemlock woolly adelgid The Asian hemlock woolly adelgid was first reported in the 1920s, when it was observed attacking western hemlock ( Tsuga heterophylla ) in the...
  • Adelges piceae پنج‌شنبه 20 دی 1386 18:58
    Adelges piceae (Ratzeburg) Healthy fir Dead firs I Dead firs II Dead firs III Adelgid eggs Adelgid (crawler) Leaf infestion Trunk infestation Infestation (close view) Balsam woolly adelgid The balsam woolly adelgid was introduced to New England in 1908 (Kotinsky, 1916) and the western states in 1928 (Annand, 1928) on...
  • کرم برگخوار ذرت spodoptera exigua Hb پنج‌شنبه 20 دی 1386 18:24
    Syn: Caradrina exigua Hb. (Lep: Noctuidae) میزبان : ذرت، چغندر قند، یونجه، سیب‌زمینی، پنبه، گیاهان جالیزی، حبوبات و گوجه‌فرنگی، باقلا، سویا، تاج خروس،سلمک، لوبیا، پیچک و .. انتشار : گسترش وسیعی دارد در مزارع ذرت تابستانه در استان خوزستان و کرمانشاه خسارت زیادی وارد می‌سازد . مرفولوژی : حشره کامل : پروانه‌ای نسبتاً...
  • عکس گونه حشره و بیماریها پنج‌شنبه 20 دی 1386 18:23
    عکسهای گونه های مختلف حشرات و بیماریهای گیاهی بر اساس نام علمی Species گونه پاتوژن یا حشره Description توضیح درباره عکس Adelges piceae : Balsam woolly adelgid Healthy fir/photo JMR Adelges piceae : Balsam woolly adelgid Dead firs I/photo JMR Adelges piceae : Balsam woolly adelgid Dead firs II/photo JMR Adelges piceae...
  • عکس گونه های گیاهی۲ پنج‌شنبه 20 دی 1386 18:22
    عکسهای گیاهان مختلف بر اساس نام علمی G -Z Species گونه گیاهی Description توضیح درباره عکس Genista monspessulanus Hillside invasion I/photo BAR Genista monspessulanus Hillside invasion II/photo JMR Genista monspessulanus Hillside invasion III/photo JMR Genista monspessulanus Floral close-up/photo JMR Genista...